Postulat koincydencji nakładów i rezultatów w badaniach empirycznych DEA
Input and Output Coincidence Postulate in DEA Empirical Research

Summary/Abstract: The article shows that the selection of input and output variables to DEA models should be based on methodological postulates. Particularly, the author formulates and justifies the postulate of intput and output coincidence, which means that direction of change in input variable shoud be consistent with direction of change in output variable. Four measures of coincendence are provided: the measure of strong and weak order coincidence and strong and weak correlation coincidence.

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